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Wyszukujesz frazę "Ižvolt, Libor" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Evaluation of geotechnical tests (static load tests) on a selected optimised section of railway Corridor No. Va
Autorzy:
Ižvolt, Libor
Dobeš, Peter
Powiązania:
https://bibliotekanauki.pl/articles/2098115.pdf
Data publikacji:
2021
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
railway track
VSS
embankment
transition area
tor kolejowy
nasyp
obszar przejściowy
Opis:
To improve the transport service of every country at the required level, it is necessary to set up appropriate infrastructure, including railways, and the necessary facilities of satisfactory quality. After the establishment of the Slovak Railways (ŽSR), the condition of the railway infrastructure was judged to be unsatisfactory. This situation urgently required optimisation of track sections, which are included in the trans-European corridors. The basic aim of optimisation of the railway network of ŽSR is to build a highquality, safe and reliable railway, which, due to its excellent quality, will correspond to the standards of advanced European countries and, at the same time, provide interoperability. Due to this, it was necessary to verify the fulfilment of the prescribed quality parameters on the optimised lines, among others, and also bear the capacity of individual structural parts of the sub-ballast layers. To address this aim, this paper deals with optimised corridor no. Va in the Považská Teplá - Žilina section, where the diagnostics of the quality of the sub-ballast layers was conducted. This paper specifically focuses on the evaluation of the determined values of the bearing capacity of the construction layers of the embankments and their foundations as well as the transition areas between the objects of sub-ballast layers and embankments located in the optimised section of the line.
Źródło:
Transport Problems; 2021, 16, 2; 213--223
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental monitoring and numerical modeling of the thermal regime of selected track substructures
Autorzy:
Ižvolt, Libor
Dobeš, Peter
Hodas, Stanislav
Powiązania:
https://bibliotekanauki.pl/articles/374707.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
railway track
non-traffic load
substructure
dimensioning
numerical modeling
wagon kolejowy
obciążenie inne niż ruch drogowy
podkonstrukcja
wymiarowanie
modelowanie numeryczne
Opis:
The initial part of the paper characterizes major research activities at the Department of Railway Engineering and Track Management (DRETM), Faculty of Civil Engineering, University of Žilina. Subsequently, it outlines the state of art in the field of track substructure dimensioning for the non-traffic load in Slovakia and abroad. The second part of the paper deals with the method of collecting input parameters for numerical modeling of the track substructure freezing using SoilVision software. The following part of the paper compares the results of the track substructure freezing obtained by experimental measurements and numerical modeling in the winter of 2016/2017. The final part of the paper focuses on the results of numerical modeling of the track substructure freezing in terms of the climatic conditions typical of railway infrastructure in the Slovak territory. Moreover, it presents a design of a modified nomogram for determination of the necessary thickness of the frost-susceptible subgrade surface layer and characterizes further related research activities planned to be implemented at the Department in the near future.
Źródło:
Transport Problems; 2019, 14, 4; 89-100
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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